Sayyidah Aisha (may Allah be pleased with her) reported that I did not see the Prophet Muhammad (peace be upon him) reciting the Qur'an while sitting in any night prayer until he became old. Then he would recite the Qur'an while sitting, but when about thirty or forty verses remained, he would stand up, recite them while standing, and then bow (ruku).
Hadith Referenceاللؤلؤ والمرجان / كتاب صلاة المسافرين وقصرها / 424
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 19 كتاب التهجد: 16 باب قيام النبي صلی اللہ علیہ وسلم بالليل في رمضان وغيره»