This Hadith mentions the reason for the acceptance of the invocations of the weak and poor. Since their hearts are free from the worldly vices and are gifted with greater sincerity and fear of Allah, their prayers are more acceptable to Him. This point has been mentioned more explicitly in Nasa'i which says: "Almighty Allah helps the Ummah because of the prayers, worship and devotion of its weak people". (Aun-ul-Ma`bud, Vol. No. 2, chapter Al-Jihad). The words which occur in most of the manuscripts of Riyad-us-Saliheen are (Abghow fi ad-duafa') and the translation quoted here follows these words. But in the manuscripts of Abu Dawud, the word (fi) does not figure in the text. In one manuscript, however, we find the words (Abghow fi ad-duafa') which means "For me search Muslims who are weak so that I find reason to support you with their prayers".