A person who says the closing salam to his right at the end of his prayer and does not say it to his left unless he is in congregation: what is the ruling on this?

Question:
One of the worshippers, at the end of his prayer, says the salam to his right only, and says that he does not say it to his left unless he is with a congregation. Please inform us about this: is it correct or not? May Allah reward you with good.

Answer:
It is better to say the salam to his right and to his left, and to say the salam twice in the prayer, whether it is an obligatory prayer or a voluntary one, and whether he is with a congregation or alone, whether he is the imam or praying alone. The most complete and safest course is to say the salam twice from the prayer. Some scholars hold that one salam to the right is sufficient, but there are those who hold that the two salams are obligatory. Based on this, in order to avoid the disagreement, one should say the salam twice. Also, this is more complete and carries more reward with Allah (Glorified and Exalted is He). Yes, may Allah reward you with good.