In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Shaikh Abdur Razzaaq Al-Badr [hafidhahullaah] said:
In the beginning of all the three principles, Imaam Muhammad Ibn Abdil Wahhaab [rahimahullaah] started by supplicating for the learner. In the first principle, he said: [اعلم رحمك الله – Know, may Allaah have mercy upon you]. In the second principle, he began by saying [اعلم رحمك الله – Know, may Allaah have mercy upon], and in the third principle, he began by saying [اعلم ارشدك الله لطاعته – Know, may Allaah guide you to His obedience].
Beginning with the word اعلم in this treatise and in his other treatises is employed when discussing important and great subject matters, and due to this you find that in the Qur’aan, this word اعلم is mentioned in the great subject matters and important commandments, such as the statement of Allaah: [فَٱعۡلَمۡ أَنَّهُ ۥ لَآ إِلَـٰهَ إِلَّا ٱللَّهُ – So know (O Muhammad ) that Laa ilaaha ill-Allaah (none has the right to be worshipped but Allah)]. In the Qur’aan, there are over 30 Aayaat with this word- mentioned in connection with Allaah’s Names and Attributes, or in the affirmation of Tawheed and other important and great subject matters. It is a word that is mentioned so that the reader’s or listener’s attention is captured.
Also supplicating for others is a sign of sincere advice and it is the path of the sincere advisers, for indeed the sincere adviser combines – for the one who is being advised – beneficial gentle clarification and with sincere supplication. He teaches him [i.e. the one being advised] in a beneficial and gentle manner and supplicates for him whilst hoping that Allaah will benefit him by way of this knowledge. This is an affair that must be given importance – that an Aalim, the one who nurtures others, an admonisher or a khateeb supplicates for the people, that Allaah benefits, guides and shows them mercy. This supplication emanates from the mercy in the adviser’s heart, the eagerness in his heart and the great desire that Allaah benefits those who are being advised or called to [the truth]. Sometimes the word رحمة is mentioned on its own and sometimes it is a mentioned alongside المغفرة. When they are mentioned together, Al-Maghfirah means forgiveness of one’s previous sins in the past, and Rahma means asking Allaah to protect, aid, forgive and guide a person to righteous deeds and statements. And if one of them is mentioned alone, the meaning of the other is added to it. [Sharh Usool Ath-Thalaatha Lesson 1. Masjid An-Nabawiy. Date: 22/08/1434]