The Messenger of Allah ﷺ did not raise his hands in any of his supplications except during the prayer for rain, when he would raise them so high that the whiteness of his armpits could be seen.
أن رسول الله ﷺ كان لا يرفع يديه في شيء من دعائه إلا في الاستسقاء، فإنه كان يرفع يديه حتى يرى بياض إبطيه.
Bukhari narrated it in the Chapters on Virtues (3565), and Muslim in the Prayer for Rain (895:7), both of them through Saeed, from Qatada, from Anas, who said, and then he related it.