Allah's Messenger (ﷺ) went to bed one night; the rest of the hadith is the same.
Sahih Muslim Book 44, Hadith 62
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Were there a pious person from amongst my Companions who should keep a watch for me durin. the night? She (A'isha) reported: We were in this state that we heard the clanging noise of arms. lie (the Holy Prophet) said: Who is it? He said: This is Sa'd b. Abi Waqqas. Allah's Messenger (ﷺ) said to him: What brings you here? Thereupon he said: I harboured fear (lest any harm should come to) Allah's Messenger (ﷺ), so I came to serve as your sentinel. Allah's Messenger (ﷺ) invoked blessings upon him. He then slept. This hadith has been transmitted on the authority of Ibn Rumh with a slight variation of wording.
Sahih Muslim Book 44, Hadith 61 Next Hadith → Allah's Messenger (ﷺ) did not gather his parents except in case of Sa`d b. Malik that he said to him on the Day of Uhud: Shoot an arrow, may my father and mother be taken as ransom for you.
Sahih Muslim Book 44, Hadith 63
Sahih Muslim Book 44, Hadith 61 Next Hadith → Allah's Messenger (ﷺ) did not gather his parents except in case of Sa`d b. Malik that he said to him on the Day of Uhud: Shoot an arrow, may my father and mother be taken as ransom for you.
Sahih Muslim Book 44, Hadith 63