It is narrated from Sayyiduna Abu Talhah al-Ansari (may Allah be pleased with him) that he said: "On the day of the Battle of Uhud I raised my head and began to look (around). At that time there was not one (of the Companions) who was not swaying beneath his shield from the overpowering drowsiness. And this is the saying of Allah, the Mighty and Majestic: 'Then after the distress He sent down upon you security, a drowsiness overcoming a group of you' [Surah Al Imran: 154] ." This hadith is sahih (authentic) on the condition of Muslim, and the two Shaykhs (Bukhari and Muslim) did not record it.