[52] مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ...
Muhammad Bin Yahya, from Ahmad Bin Muhammad, from Ali Bin Al Hakam, from Abu Al Magra, from Haroun Bin Kharja, Abu Abdullah -asws (6 th Imam) narrates that Rasool-Allah -azwj used to eat the eating of the slave, and sitting the seating of the slave, and he -saww knew he -saww was a slave (of Allah ‑azwj )’.
Ali Bin Ibrahim, from his father, from Safwan, from Ibn Muskan, from Al Hassan Al Sayqal who said, ‘I heard Abu Abdullah -asws saying: ‘A rude woman passed by Rasool-Allah -saww and he ‑saww was eating, and he -saww was seated upon the low ground. So she said, ‘O Muhammad -saww ! You -saww are eating the eating of the slave, and sitting the seating his seating’. So Rasool-Allah -saww said to her: ‘I -saww am a slave, and which slave is more of a slave than me -saww ?’ (An extract).
[54] Sitting and standing manners for men in Salat و قوله ع في صحيحته الأخرى إياك و القعود على قدميك فتتأذى بذلك و لا تكون قاعدا على الأرض فيكون إنما قعد بعضك على بعض فلا تصبر للتشهد و الدعاء.
And his -asws words in his another ‘Saheeh’ (correct Hadeeth): ‘Beware of doing ‘Al-Iq’a (sitting in thunderbolt position) upon your feet for you will be hurt with that, and do not be seated upon the ground for you have been seated with part of you upon part and you will not be patient (comfortable) for the Tashahhud and the supplication’’ .