´And the Messenger of Allah (s.a.w) said:` "Allah is more pleased with the repentance of one of you that a man in a desolate, barren, destructive wasteland, who has his mount carrying his provisions, his food, and his drink and what he needs with him. Then it wanders away. So he goes to find it until he is on the brink of death. He says: 'I will return to the place where I lost it, to die.' So he returns to his place and his eyes become heavy (falling asleep). Then he awakens to find his mount at his head carrying his food, drink and what he needs." Other chains report similar narrations.
Hadith Referenceسنن ترمذي / كتاب صفة القيامة والرقائق والورع عن رسول الله صلى الله عليه وسلم / 2498
'Imran bin Husain (RA) reported that the Apostle of Allah (ﷺ) said to him (or he said to another person and he was listening to it): O, so and so, did you observe fast in the middle of the month? He said: No. Thereupon he (the Messenger of Allah) (ﷺ) said: When you break it, then observe fast for two days.
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary:Benefits and Issues: According to the majority of linguists and scholars of hadith, (sararu) refers to the last days of the month, because during these days the moon becomes hidden. According to some, it refers to the initial days of the month, and according to others, it is derived from (surrat al-shahr) (its middle and center), and the "white days" (ayyam al-beed) are meant.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 2745