(Imām Bukhārī narrates): Muhammad bin Bashshar narrated the hadith to us, he said: Yahya and Ibn Adi narrated the hadith to us, from Sa'id, from Qatadah, from Hazrat Anas bin Malik (Allāh be pleased with him), he narrated that

the Prophet ﷺ did not raise his hands in any supplication except the prayer of Istisqa, and he ﷺ would raise his hands (to such an extent) that the whiteness of his armpits could be seen.