The Messenger of Allah ﷺ stayed fifteen days in Mecca in the year of Conquest. Shortening the prayer. Abu Dawud said: This tradition has also been transmitted by 'Abdah b. Sulaiman, Ahmad b. Khalid al-Wahbi, and Salamah b. Fadli on the authority of Ibn Ishaq ; but they did not mention the name of Ibn 'Abbas.  

أَقَامَ رَسُولُ اللَّهِ ﷺ بِمَكَّةَ عَامَ الْفَتْحِ خَمْسَ عَشْرَةَ يَقْصُرُ الصَّلاَةَ  

The Messenger of Allah ﷺ stayed in Mecca seventeen days and prayed two rak'ahs (at each time of prayer).  

أَنَّ رَسُولَ اللَّهِ ﷺ أَقَامَ بِمَكَّةَ سَبْعَ عَشْرَةَ يُصَلِّي رَكْعَتَيْنِ  

It was narrated from Ibn ‘Abbas that the Messenger of Allah ﷺ stayed in Makkah for fifteen nights during the year of the Conquest, (during which time) he shortened his prayer.  

أَنَّ رَسُولَ اللَّهِ ﷺ أَقَامَ بِمَكَّةَ عَامَ الْفَتْحِ خَمْسَ عَشْرَةَ لَيْلَةً يَقْصُرُ الصَّلاَةَ  

The Messenger of Allah ﷺ stayed at Tabuk twenty days; he shortened the prayer (during his stay). Abu Dawud said: No one narrates this tradition with continuous chain except Ma'mar. (Using translation from Abū Dāʾūd 1235)   

أَقَامَ رَسُولُ اللهِ ﷺ بِتَبُوكَ عِشْرِينَ يَوْمًا يَقْصُرُ الصَّلَاةَ  

"عَنِ ابْنِ عَبَّاسٍ قَالَ: أَقَامَ رَسُولُ اللهِ ﷺ بِمَكَّةَ حَيْثُ فَتَحَ مَكَّةَ سَبْعَ عَشْرَةَ لَيْلَةً يُقْصِرُ الصَّلاةَ حَتَّى إِذا سَافَرَ إِلَى حُنَيْنٍ".  

" عَنْ جَابِرٍ قَالَ: أَقَامَ رَسُولُ الله ﷺ بِتَبُوكَ عِشْرِينَ لَيْلَةً يَقْصُرُ الصَّلاَةَ ".