under Chapter 127, “The Etiquettes of Sleeping...,” al-Nawawi cited this hadith under discussion, as well as a hadith narrated through the previously mentioned Mansur. He retained the opening portion of the latter, indicating that he would cite it in full, but omitted the former without making any indication of this. The reason is clear: from what has become apparent to me of his method in this book, he has no knowledge of the hadiths contained in the primary sources. Rather, he draws upon compendia of hadith and some books concerned with hadith documentation and criticism. Whenever he finds a benefit or a critical observation, he adopts it and mentions it without attributing it to its author. It therefore appears to me that he omitted it only because he had, at the very least, doubts as to its presence in Sahih al-Bukhari, and time did not permit him to search for it with the aid of indexes—not through knowledge retained in his mind, if indeed he possesses any. Otherwise, there would have been no reasonable sense in omitting it, had he found it, since it contains a benefit not found in Mansur’s narration: namely, that the Prophet, peace and blessings be upon him, would consistently sleep on his right side and offer this supplication while doing so. Al-Nawawi, may Allah have mercy on him, cited it for no other reason.
2890 — “Whoever performs the dawn prayer is under Allah’s protection. So beware lest Allah call you to account for violating His protection in any respect, for whoever He calls to account for violating His protection in any respect, He will overtake him and then cast him face-down into the Fire of Hell.”
Muslim (2/125), Abu Awanah (2/11–12), al-Bayhaqi in al-Sunan (1/464), al-Tabarani in al-Mu'jam al-Kabir (2/179/1683 and 1684), and likewise al-Ruyani in his Musnad (164/2) recorded it through Khalid al-Hadhdha, from Anas ibn Sirin, who said: I heard Jundab al-Qasri say: The Messenger of Allah, peace and blessings be upon him, said it.
Al-Hasan also corroborated it from Jundab in a shorter form, omitting his words, “for whoever He calls to account...” and so on. It was recorded by Muslim, Abu Awanah, al-Tirmidhi (222), and Ibn Hibban (3/120/