سنن ابن ماجه 1075

It was narrated that Ibn ‘Abbas said:“The Messenger of Allah (ﷺ) stayed for nineteen days in which he shortened his prayer to two Rak’ah. So, whenever we stayed for nineteen days we would shorten our prayer to two Rak’ah, but if we stayed more than that we would pray four Rak’ah.”

Rapporté par Ibn ‘Abbas : Le Messager d’Allah (ﷺ) est resté dix-neuf jours pendant lesquels il a raccourci la prière à deux rak’ah. Donc, chaque fois que nous restions dix-neuf jours, nous raccourcissions la prière à deux rak’ah, mais si nous restions plus longtemps, nous priions quatre rak’ah