ʿUlūm al-Ḥadīth, as it was more commonly referred to in classical works, or Muṣṭalaḥ al-Ḥadīth as it is more commonly known today, is defined as:
“…the knowledge of the principles and maxims by which the conditions of chains of narrations and texts are known, in terms of acceptability and rejection.”
See: Maḥmūd al-Ṭaḥḥān’s Taysīr Muṣṭalaḥ al-Ḥadīth, (Alexandria: Markaz al-Maʿhad li al-Dirāsāt, 1415H), p. 15.
Sūrah al-Kāfirūn
It is recommended for one to recite Sūrah al-Kāfirūn before going to sleep. The proof is:
On the authority of Farwah b. Nawfal, [who narrated] from his father: that the Prophet, may the praise and protection of Allāh be upon him, said to Nawfal:
“Read {Say: O you disbelievers!}, then go to sleep at the end of it, for indeed it is a complete disavowal of polytheism.”
Reported by the Five except for Ibn Mājah, and the wording is that of Abū Dāwūd.
Source: Abū Dāwūd (5055), al-Tirmidhī (3403), al-Nasāʾī in al-Kubrá (10569) and (11645), Aḥmad (23807) and Ṣaḥīḥ al-Targhīb (605) by al-Albānī.
Upon entering the marketplace, it is recommended for one to read the following supplication [in green]:
On the authority of ʿUmar b. al-Khaṭṭāb [who narrated] that the Messenger of Allāh, may the praise and protection of Allāh be upon him, said:
“Whoever enters the marketplace and says, ‘There is none worthy of worship except Allāh alone without any partners, to Him belongs the dominion and to Him belongs all praise, He gives life and causes death, He is the All-Living and does not die, in His Hand is all goodness, and He has power over all things’, Allāh will write a million good deeds for him, and wipe a million evil deeds away from him, and raise a million ranks for him.”
Reported by al-Tirmidhī.
Ḥasan: al-Tirmidhī (3428) and in the Dār al-Taʾṣīl edition (3746). Ibn Mājah (2235). Aḥmad (327). See: Ṣaḥīḥ al-Targhīb wa al-Tarhīb (1694) of al-Albānī.
The Prophet ﷺ used to ask Allāh for beautiful character and manners despite him being the best role model for mankind.
Muḥāḍir Abū al-Muwarriʿ narrated us: ʿĀṣim narrated to us: from ʿAwsajah b. al-Rammāḥ: from ʿAbd Allāh b. Abī al-Hudhayl:
On the authority of Ibn Masʿūd [who narrated] that the Messenger of Allāh, may the praise and protection of Allāh be upon him, used to say:
“O Allāh, You have beautified my body, and so beautify my character as well.”
Reported by Aḥmad.
Ḥasan: Aḥmad (3823), (24392) and (25221). al-Bukhārī in al-Adab al-Mufrad (290). Ibn Ḥibbān (959). al-Ṭayālisī (374). Abū Yaʿlá (5181). Bulūgh al-Marām (1327) as in Hādī’s edition. See Irwāʾ al-Ghalīl (74) of al-Albānī.
Salafi Knowledge 