بُلُوغُ الْمَرَامِ
Bulugh al-Maram 435
The Book of Prayer
وَعَنْ اِبْنِ عَبَّاسٍ رَضِيَ اَللَّهُ عَنْهُمَا قَالَ: { أَقَامَ اَلنَّبِيُّ - صلى الله عليه وسلم -تِسْعَةَ عَشَرَ يَقْصُرُ } وَفِي لَفْظٍ: { بِمَكَّةَ تِسْعَةَ عَشَرَ يَوْمًا } رَوَاهُ اَلْبُخَارِيّ ُ [1] .
Narrated Ibn 'Abbas (RA): The Prophet (ﷺ) (made a journey during which) he had a stop of nineteen days, during which he shortened his prayers. [Al-Bukhari] And in a narration: "(he (ﷺ) stayed) nineteen days in Makkah."
Sunnah.com reference: Book 2, Hadith 345