7. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Safwan ibn Yahya from Ya’qub ibn Shu’ayb who has said the following: “I once asked abu ’Abd Allah عليه السلام, about a man who performs Salah (prayer) on his stumper. He (the Imam) said, ‘He makes gestures for Sujud (prostrations) lower than the gesture for Ruku‘ (bowing down on one’s knees).’ I then asked, ‘Can he perform Salah (prayer) while walking? He (the Imam) said, ‘Yes, but in the form of gestures and make the one for Sujud (prostrations) lower than that for RukuV”