Here is a benefit extracted from Class #9 in the series of lectures titled: The Three Fundamental Principles of Abu Suhailah 'Umar Quinn (hafidhahullah Ta'ala) that were delivered at Masjid al-Hidaayah.
"The Salah by itself is from the greatest of the means of Dawah from the time of the Prophet. There are so many reports from the Imams of the Salaf, people who accepted Islam watching the Salaf pray watching the scholars and the righteous pray publicly. While they were travelling, while they were being hosted sometimes in the homes of the scholars. There is the well known narration (I believe he was Abdul-Ghani Al-Maqdisi) who was being hosted by one of the governors of the lands of the Muslims and in that home, there were some disbelievers who were under the protection of the Muslim government and who were citizens of the Muslim land who worked in the government. When he stood up to pray in the night when he finished praying they accepted Islam. The scholars, they say how amazing is it! That these people had spent a significant amount of time amongst the Muslims and the prayer of the Muslims that they had seen that did not cause them to enter into Islam but when they saw a prayer performed correctly upon the 'Sunnah' of the Prophet [SE] they accepted Islam."
In this very lecture, he (hafidhahullah Ta'ala), said:
It has been digitally edited before being posted below, walhamdulillah!
Abu Hurairah (رضي الله عنه) narrated that the Prophet ﷺ said: "Whoever invites to guidance will be rewarded like those who follow him in the guidance are rewarded, and that will not decrease the reward of those who have followed him." [Collected by Imām Muslim]
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