´It was narrated from Ibn Buhainah:` “The Prophet (ﷺ) offered prayer, I think it was the ‘Asr, and in the second Rak’ah he stood up before he sat. Before he said the Salam, he prostrated twice.”
Hadith ReferenceSunan Ibn Majah / Establishing the Prayer and the Sunnah Regarding Them / Hadith: 1206
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:بخاري ومسلم