´It was narrated that Abu Qatadah said:` “The Messenger of Allah (ﷺ) used to lead us in prayer, and he would lengthen the first Rak’ah of the Zuhr and shorten the second Rak’ah, and he would do likewise in the Subh.”
Hadith ReferenceSunan Ibn Majah / Establishing the Prayer and the Sunnah Regarding Them / Hadith: 819
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم