He told them that the Messenger of Allah ﷺ would not raise his hands in any of his supplications except during the prayer for rain, when he would raise his hands so high that the whiteness of his armpits became visible.Abu Musa said, "The Prophet ﷺ made supplication and raised his hands, and I saw the whiteness of his armpits."
حدثنا عبد الأعلى بن حماد حدثنا يزيد بن زريع حدثنا سعيد عن قتادة أن
حدثهم أن رسول الله ﷺ كان لا يرفع يديه في شيء من دعائه إلا في الاستسقاء فإنه كان يرفع يديه حتى يرى بياض إبطيه وقال أبو موسى دعا النبي ﷺ ورفع يديه ورأيت بياض إبطيه