Sayyiduna ‘Abdullah ibn ‘Abbas (Radiyallahu’anhu) reports that Rasulullah (sallallahu alayhi wasallam) said, “Blessing (barakah) is with your elders/ seniors.” Explanation: Elders refers to those who are experienced and punctual on good actions. Remain in their company so that you can follow their advices and attain guidance through emulating their ways. (Faydul Qadir, Hadith :3205)
Imam Shafi’iee رحمه الله has stated: “I have heard that du’ās are accepted by Almighty Allah on five nights:
1) The night of Jumu’ah,
2 and 3) The nights of the two ‘Eids,
4) The first night of Rajab
5) The middle (15th) night of Sha’ban.”
(Latayful Ma’arif, pg. 196. Also see Kitabul Umm, vol. 2, pg. 485)