Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says that he came to his maternal aunt Sayyidah Maymunah (may Allah be pleased with her). The Prophet (peace and blessings be upon him) got up at night and went to the water-skin, performed ablution and prayed. He says: I too got up and performed ablution, and stood on his (peace and blessings be upon him) left. He (peace and blessings be upon him) turned me around from behind him and placed me on his right side.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5174