Hadithcore
Sahih al-Bukhari, 1132b
sahih

Narrated Al-Ashath:

He (the Prophet (ﷺ) ) used to get up for the prayer on hearing the crowing of a cock.

حَدَّثَنَا مُحَمَّدُ بْنُ سَلاَمٍ قَالَ أَخْبَرَنَا أَبُو الأَحْوَصِ عَنِ الأَشْعَثِ قَالَ إِذَا سَمِعَ الصَّارِخَ قَامَ فَصَلَّى‏.

References2 variants
In-Book Reference
Book 19, Hadith 13
USC-MSA web (English) reference
Vol. 2, Book 21, Hadith 233 (deprecated numbering scheme)