Khan عَـلَيْهِ رَحْمَةُ الـرَّحْمٰن writes in his classical work of Fiqh, Fatawa Razawiyyah: One should at least say the words اَلسَّلَامُ عَلَیْکُمْ; it is better to add وَ رَحْمَۃُ  اللّٰہِ and it would be best to add وَبَرَکَاتُہٗ, but nothing more. The one replying must say at least the same words however, it is better to add the aforementioned words. For example, if one is greeted with اَلسَّلَامُ عَلَیْکُمْ then one should reply with وَ عَلَیْکُمُ السَّلَامُ وَ رَحْمَۃُ اللّٰہ. If he is greeted with اَلسَّلَامُ عَلَیْکُمْ وَ رَحْمَۃُ اللّٰہ, then one should reply وَ عَلَیْکُمُ السَّلَامُ وَ رَحْمَۃُ اللّٰہِ وَبَرَکَاتُہٗ. If one is greeted with اَلسَّلَامُ عَلَیْکُمْ وَ رَحْمَۃُ اللّٰہِ وَبَرَکَاتُہٗ, then one should reply with the same words nothing more. وَاللّٰهُ تَعَالٰى اَعۡلَم

1.        The one replying can receive 30 good deeds as well by saying وَ عَلَیْکُمُ السَّلَامُ وَ رَحْمَۃُ اللّٰہِ وَبَرَکَاتُہٗ in return.

2.        It is Wajib [obligatory] to reply with Salam immediately in a voice audible to the one who greeted you with Salam.

3.        Learn the correct pronunciation of the Salam. First, I will say it then you repeat after me (اَسْ۔سَلَا۔مُ۔عَلَی۔کُمْ) اَلسَّلَامُ عَلَیْکُمْ, now I will say the reply and you repeat it after me, وَ عَلَیْکُمُ السَّلَامُ (وَ۔عَ۔لَیْكُ۔مُسْ۔سَلَام).

صَلُّوۡا عَلَى الۡحَبِيۡب      صَلَّى اللّٰهُ تَعَالٰى عَلٰى مُحَمَّد

To learn various Sunnahs, buy and read the books Bahar-e Shari’at volume 16 comprising of 312 pages and Sunnatayn aur Adaab comprising of 120 pages, both published by Maktaba-tul-Madinah. One of the best ways to learn Sunnahs is to travel in the Madani Qafilahs of Dawat-e-Islami with the devotees of the Beloved Prophet.

تین دن ہر ماہ جو اپنائے مدنی قافلہ  بے حساب اس کا خدایا! خلد میں ہو داخلہ

صَلُّوۡا عَلَى الۡحَبِيۡب      صَلَّى اللّٰهُ تَعَالٰى عَلٰى مُحَمَّد

The six types of Salawat-‘Alan-Nabi that are recited in the Sunnah-Inspiring weekly Ijtima’ (congregation) of Da’wat-e-Islami:

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