Almighty Allah has sworn by the night in the second verse of Surah Dhuha.
The Lord Almighty says:
And by the night when it covers up, Surah Dhuha (93:02)
Various opinions have been given about the “night” mentioned in this verse.
‘Allama Ismail Haqqi (May Allah shower His mercy on him) has given the following exegesis of this verse along with other interpretations:
Translation: It is narrated on the authority of Hadhrat Imam Ja’afar Sadiq (May Allah be well pleased with him) that this means the time when Almighty Allah granted the honor of conversation to Hadhrat Moosa (May peace be upon him) and the “night” meant here is the 27th night of Rajab (i.e. Shab Meraj).
(Tafseer Ruh Al Bayan, Surah Dhuha, 02)
This exegesis has also been mentioned by Hadhrat Shah ‘Abdul ‘Azeez Dehlvi (May Allah shower His mercy on him) in his exegesis, Tafseer Fath Ul ‘Azeez:
Translation: Some exegetes have opined that “Dhuha” means the time of the birth of the Holy Prophet (Sallallahu alaihi wa sallam) and the “night” means the 27th night of Rajab. (Tafseer Fath Ul ‘Azeez, Surah Dhuha-02, Pg. No. 281)
Source: Zia Islamic