Abu Salamah bin Abdur-Rahman narrates from Sayyidah Aishah (may Allah be pleased with her) that he (peace and blessings be upon him) would pray sitting and also recite sitting, and when thirty or forty verses of his (peace and blessings be upon him) recitation remained, he (peace and blessings be upon him) would stand up. Then he (peace and blessings be upon him) would recite standing and bow, and then prostrate. Then he would do the same in the second rak'ah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4590