Concealing the true destination of a Ghazwa

Narrated Ka'b bin Malik:

Whenever Allah's Apostle intended to lead a Ghazwa, he would use an equivocation from which one would understand that he was going to a different destination .

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عَبْدُ الرَّحْمَنِ بْنُ عَبْدِ اللَّهِ بْنِ كَعْبِ بْنِ مَالِكٍ، أَنَّ عَبْدَ اللَّهِ بْنَ كَعْبٍ ـ رضى الله عنه ـ وَكَانَ قَائِدَ كَعْبٍ مِنْ بَنِيهِ قَالَ سَمِعْتُ كَعْبَ بْنَ مَالِكٍ حِينَ تَخَلَّفَ عَنْ رَسُولِ اللَّهِ ﷺ. وَلَمْ يَكُنْ رَسُولُ اللَّهِ ﷺ يُرِيدُ غَزْوَةً إِلاَّ وَرَّى بِغَيْرِهَا.

Narrated Ka'b bin Malik:

Whenever Allah's Apostle intended to carry out a Ghazwa, he would use an equivocation to conceal his real destination till it was the Ghazwa of Tabuk which Allah's Apostle carried out in very hot weather. As he was going to face a very long journey through a wasteland and was to meet and attack a large number of enemies. So, he made the situation clear to the Muslims so that they might prepare themselves accordingly and get ready to conquer their enemy. The Prophet informed them of the destination he was heading for (Ka'b bin Malik used to say, "Scarcely did Allah's Apostle set out for a journey on a day other than Thursday.")

وَحَدَّثَنِي أَحْمَدُ بْنُ مُحَمَّدٍ، أَخْبَرَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا يُونُسُ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي عَبْدُ الرَّحْمَنِ بْنُ عَبْدِ اللَّهِ بْنِ كَعْبِ بْنِ مَالِكٍ، قَالَ سَمِعْتُ كَعْبَ بْنَ مَالِكٍ ـ رضى الله عنه ـ يَقُولُ كَانَ رَسُولُ اللَّهِ ﷺ قَلَّمَا يُرِيدُ غَزْوَةً يَغْزُوهَا إِلاَّ وَرَّى بِغَيْرِهَا، حَتَّى كَانَتْ غَزْوَةُ تَبُوكَ، فَغَزَاهَا رَسُولُ اللَّهِ ﷺ فِي حَرٍّ شَدِيدٍ، وَاسْتَقْبَلَ سَفَرًا بَعِيدًا وَمَفَازًا، وَاسْتَقْبَلَ غَزْوَ عَدُوٍّ كَثِيرٍ، فَجَلَّى لِلْمُسْلِمِينَ أَمْرَهُمْ، لِيَتَأَهَّبُوا أُهْبَةَ عَدُوِّهِمْ، وَأَخْبَرَهُمْ بِوَجْهِهِ الَّذِي يُرِيدُ.