The Ruling on Greeting, Its Reward, and Its Benefits

The Shaykh : As for the ruling on the greeting, its ruling is a confirmed recommended practice (sunnah) as long as leaving it off does not amount to boycotting. If leaving it off amounts to boycotting, then it becomes obligatory. To put it a second time, the greeting is originally what? It is a confirmed recommended practice (sunnah) as long as leaving it off does not reach the level of boycotting, in which case it becomes obligatory. When does leaving it off reach the level of boycotting? If you meet your brother and do not greet him for more than three days, then this is forbidden (haram). You must greet him because , as the Prophet (peace and blessings be upon him and his family) said.
As for the reward of the greeting, the Messenger (peace and blessings be upon him) explained that in saying "peace be upon you" there are ten good deeds. Ten good deeds. When will you find these good deeds? You will find them when you need them most, on the Day of Resurrection. Then these good deeds increase the heart in faith. Every good deed a person does sincerely for Allah, following the Messenger of Allah (peace and blessings be upon him and his family), his faith increases with it. Also, the greeting is a cause for entering Paradise, which every person wants to reach. The evidence for this is the saying of the Messenger of Allah (peace and blessings be upon him and his family): Spread the greeting, meaning display the greeting among yourselves. Spreading the greeting is one of the causes of affection, and affection is part of the perfection of faith, and faith leads to entering Paradise. So its benefit is great, along with the ten good deeds, along with the bonding and love between people. Its benefit is that it is a cause for entering Paradise.