Sunan an-Nasa'i 1513

Shu‘ayb ibn Yusuf narrated to me, from Yahya ibn Sa‘id al-Qattan, from Sa‘id, from Qatadah, from Anas, who said: The Messenger of Allah (peace and blessings be upon him) did not raise his hands in any supplication except when supplicating for rain. On that occasion, he would raise them until the whiteness of his armpits could be seen.