The following work by Dr. Abul Hasan Hussain Ahmed is a defence of the authenticity of the following narration:
It is related from Malik al-Dar,
`Umar’s treasurer, that the people suffered a drought during the time of `Umar (his khilafah), whereupon a man came to the grave of the Prophet and said: “O Messenger of Allah, ask for rain for your Community, for verily they have but perished,” after which the Prophet appeared to him in a dream and told him: “Go to `Umar and give him my greeting, then tell him that they will be watered. Tell him: You must be clever, you must be clever!” The man went and told `Umar. The latter said: “O my Lord, I spare no effort except in what escapes my power!”" (Musannaf ibn Abi Shayba and other works)
It is entitled: "The Blazing star in defence of a narration from Malik al-Dar."
It is in essence a complete rebuttal of pseudo-Salafis who attempted to weaken this narration like: al-Albani, Zubair Ali Za'i and their blind followers like - Abu Hibbaan Kamran Malik, Abu Khuzaimah Imran Masoom, Abu Alqama Ali Hassan Khan and the self styled Hanafi-Athari-Sufi, Abu Turab Ali Rida Qadri. It also addressed indirectly other diatribes made by other members of pseudo-Salafism on some forums and websites.
The response is in excess of 400 pages and replete with full references to all major claims by the detractors of this narration, insha Allah.