Manners of Lying down on one's back and placing one leg upon the Other
820. `Abdullah bin Zaid (May Allah be pleased with them) reported: I saw Messenger of Allah (PBUH) lying down on his back in the mosque, placing one leg on the other.
[Al-Bukhari and Muslim].
821. Jabir bin Samurah (May Allah be pleased with him) reported: After the Fajr (dawn) prayer the Prophet (PBUH) used to sit crossed legged in the same place in which he had prayed till the sun shone brightly.
Commentary: This Hadith tells us that it is commendable to stay in the mosque after offering Fajr prayer with the congregation until sunrise. It also commends sitting cross-legged.
822. Ibn `Umar (May Allah be pleased with them) reported: I saw Messenger of Allah (PBUH) sitting in the compound of the Holy Ka`bah, with the thighs against the stomach and arms around his legs.
823. Qailah bint Makhramah (May Allah be pleased with her) reported: I saw the Prophet (PBUH) seated with his arms enfolding his legs; and when I saw him in such a state of humble guise I trembled with fear due to the awe (he showed in that posture).
824. Ash-Sharid bin Suwaid (May Allah be pleased with him) reported: Messenger of Allah (PBUH) passed by me when I was sitting with my left hand behind my back and leaning on my palm. On seeing me in this posture he said, "Do you sit like those upon whom the Wrath of Allah has descended?''
Commentary: The Jews and Christians are the people upon whom came the Wrath of Allah. Muslims have been stopped from copying their example. But unfortunately they now take a pride in imitating them in every matter and think it necessary for worldly progress.