Ruku‘ (Kneeling) and Readings therein and When Standing up Straight Thereafter

5. Al-Husayn ibn Muhammad has narrated from ‘Abd Allah ibn ‘Amir from Ali ibn Mahziyar from Muhammad ibn ’Isma‘il ibn Bazi‘ who has said the following: “I saw abu al-Hassan عليه السلام, perform Ruku‘ (bowing down on one’s knees) and make it lower than all of those whom I have seen performing Ruku‘. He spread, in the position of Ruku‘ his arms like wings.’”