Narrated by Sayyiduna Sahl bin Sa’d (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: A believer is one who is friendly and with whom others feel comfortable, and there is no good in a person who is neither friendly with others nor do others feel comfortable with him.
Hadith Takhrij«متن الحديث حسن، أخرجه الطبراني في الكبير : 5744، والبيھقي في الشعب : 8210 ، (انظر مسند أحمد ترقيم الرسالة: 22840 ترقیم بيت الأفكار الدولية: 23228»
Brief Explanation
Benefits: … It is understood from this that intimacy (uns) has a deep connection with the believer; people become familiar with him and he becomes familiar with people. The best example of this is that if the imam of the mosque is of good character, a practicing scholar, values the worshippers without discrimination, is concerned for the education of people's children, and, being free from greed and miserliness, understands and maintains his own honor and dignity, then the affection, love, respect, and reverence he receives from people is something that an ordinary person cannot comprehend in its reality.
The same applies to other teachers and doctors, but first and foremost, it is obligatory to fulfill the requirements of faith (iman) and Islam.