The Invasion of Tabuk in Rajab, in the Year 9 A.H.

The invasion and the conquest of Makkah was considered a decisive one between the truth and the error. As a result of which, the Arabs had no more doubt in Muhammad’s mission. Thus we see that things went contrary to the pagans’ expectations. People started to embrace Islaam, the religion of Allâh, in great numbers. This is manifested clearly in the chapter — The delegations, of this book. It can also be deduced out of the enormous number of people who shared in the Hajjatul-Wadâ‘ (Farewell Pilgrimage). All domestic troubles came to an end. Muslims, eventually felt at ease and started setting up the teachings of Allâh’s Laws and intensifying the Call to Islaam.

The underlying Reasons:

The Byzantine power, which was considered the greatest military force on earth at that time, showed an unjustifiable opposition towards Muslims. As we have already mentioned, their opposition started at killing the ambassador of the Messenger of Allâh , Al-Harith bin ‘Umair Al-Azdi, by Sharhabeel bin ‘Amr Al-Ghassani. The ambassador was then carrying a message from the Prophet to the ruler of Busra. We have also stated that the Prophet consequently dispatched a brigade under the command of Zaid bin Haritha, who had a fierce fight against the Byzantines at Mu’tah. Although Muslim forces could not have revenge on those haughty overproud tyrants, the confrontation itself had a great impression on the Arabs, all over Arabia.

Caesar — who could neither ignore the great benefit that Mu’tah Battle had brought to Muslims, nor could he disregard the Arab tribes’ expectations of independence, and their hopes of getting free from his influence and reign, nor he could ignore their alliance to the Muslims — realizing all that, Caesar was aware of the progressive danger threatening his borders, especially Ash-Sham-fronts which were neighbouring Arab lands. So he concluded that demolition of the Muslims power had grown an urgent necessity. This decision of his should, in his opinion, be achieved before the Muslims become too powerful to conquer, and raise troubles and unrest in the adjacent Arab territories.

To meet these exigencies, Caesar mustered a huge army of the Byzantines and pro-Roman Ghassanide tribes to launch a decisive bloody battle against the Muslims.

General News about the Byzantines and Ghassanide Preparations for War.

No sooner news about the Byzantine’s preparations for a decisive invasion against Muslims reached Madeenah than fear spread among them. They started to envisage the Byzantine invasion in the least sound they could hear. This could be clearly worked out of what had happened to ‘Umar bin Al-Khattab one day.

The Prophet had taken an oath to stay off his wives for a month in the ninth year of Al-Hijra. Therefore, he deserted them and kept off in a private place. At the beginning, the Companions of the Messenger of Allâh were puzzled and could not work out the reason for such behaviour. They thought the Prophet had divorced them and that was why he was grieved, disturbed and upset. In ‘Umar’s version of the very story he says: "I used to have a Helper friend who often informed me about what happened if I weren’t present, and in return I always informed him of what had taken place during his absence. They both lived in the high part of Madeenah. Both of them used to call at the Prophet alternatively during that time of suspense. Then one day I heard my friend, knock at the door saying: "Open up! Open up!" I asked wondering, "What’s the matter? Has the Ghassanide come?" "No it is more serious than that. The Messenger of Allâh has deserted his wives."

In another version, ‘Umar said, "We talked about Ghassanide preparations to invade us. When it was his turn to convey the news to me, he went down and returned in the evening. He knocked at the door violently and said ‘Is he sleeping?’ I was terrified but I went out to meet him. ‘Something serious had taken place.’ He said. ‘Has the Ghassaindes arrived?’ Said I. ‘No,’ he said, ‘it is greater and more serious. The Messenger of Allâh has divorced his wives.’" 

This state of too much alertness manifests clearly the seriousness of the situation that Muslims began to experience. The seriousness of the situation was confirmed to a large degree by the hypocrites behaviour, when news about the Byzantines’ preparations reached Madeenah. The fact that the Messenger of Allâh won all the battles he fought, and that no power on earth could make him terrified, and that he had always proved to be able to overcome all the obstacles that stood in his way - did not prevent the hypocrites, who concealed evil in their hearts, from expecting an affliction to fall upon the Muslims and Islaam.

They used to harbour evil and ill-intentions against the whole process of Islaam and the Muslims. On grounds of illusory hopes of destroying this great religious edifice, they erected a hotbed of conspiracy and intrigue in the form of a mosque — Masjid-e-Darar (the mosque of harm). They approached the Prophet with the request that he should come and consecrate the place by praying in it himself. As he was at the moment about to start for Tabuk, he deferred compliance with their request till his return. Meanwhile he came to know through Divine Revelation that it was not a Mosque for devotion and prayer but a meeting place for the anti-Islamic elements. On his return, therefore, the Prophet sent a party to demolish the new structure.