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)
Hazrat Ahmad Harb رحمه الله would not sleep during the nights. He perpetually remained awake the entire night. Once his companions said; “What harm will there be if you take a rest for just one night?”
Hazrat Ahmad Harb رحمه الله replied; “How can a man who is buffeted between Jannah and Jahannam, not knowing which of the two is his ultimate destination, ever sleep?”
(SOURCE: THE SAADIQEEN)