The imam was known for his istiqamah (regular) in qiyamulail (night prayers) in health and in sickness. He was guru to more than 100 noble men during his time. His Wirdul Latif became known all around the world to this day. So was Ratib al-Haddad. In fact the Ratib became famous and was widely read at the Haramain at the time when there had been no publicity about it. But Allah spread Al-Haddad's teachings to the East and West for his sincerity and truthfulness towards Him.
Imam Al-Haddad was acclaimed as the renewer of Islam (mujaddid) of the 12th century. He was strictly zuhud (detached) from the world. He has remained in service for Islam during his lifetime and beyond. People who attended his majlis was said to have benefited from him even when he had not spoken anything. One man who eventually became his student was a judge/scribe who feared that his writings might had been erroneous and unfair. Three of his fingers were constantly in pain and he would lament and complain to Al-Haddad. The imam thought that it was due to the man's past mistakes. His pains aggravated when he got home and that caused him to be even more upset. He thought that it was no use of him learning from Al-Haddad when the imam could not even cure his ailment. One night, he dreamed a frightful dream. He saw himself lifeless and saw people giving him a bath and burying him. Two horrifying angels confronted him. He thought there was no way he could escape those two awful beings, that he was doomed. All of a sudden, he saw Imam Al-Haddad appearing in his grave out of nowhere. The imam talked to the angels, telling them to leave the judge alone because he had repented and that he had sat in Al-Haddad's majlis before.
The man immediately realized that it was not useless at all to sit in the company of Al-Haddad. The next morning he performed subuh prayers behind Al-Haddad. The moment Al-Haddad said his salam, he turned back and said: "Your dream was indeed true. It's not only true for you but for everyone. Whoever loves me truthfully would benefit just as you did." From then on the man lived a life of piety with khusyuk [attentivenes] and tawaduk [reverence] both in khalwah [in private] and jalwah [in society].
Habib Ahmad bin Zain al-Habshi once asked Imam Al-Haddad what tariqa Al-Ba'alawi was all about? He said: "It comprises of ilmu, amal, ikhlas, khauf and waraq." (knowledge, good deeds, sincerity, fearful and piety). "And the tariqa suits the state (hal) of the person."