When is it prescribed for the person praying behind the imam to say the tasleem to his right?

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
When saying tasleem at the end of prayer, should the person who is praying behind an imam say tasleem after the first tasleem from the imam, then the second after the second, or should he wait and not say the tasleem until the imam has finished the second tasleem?.
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
If someone loses his wudoo’ whilst praying and goes and does wudoo’, can he resume his prayer from where he left off or should he start all over again?
Woman speaking aloud in prayer in the presence of her mahrams

Answer:
Praise be to Allaah.

It is better for the person who is praying behind an imam not to say the tasleem at the end of the prayer until the imam has finished the second tasleem. 

Al-Nawawi (may Allaah have mercy on him) said in al-Majmoo’ (3/464):  

Al-Baghawi said: It is mustahabb not to start the salaam until the imam has finished both tasleems. This is the view of al-Shaafa’i according to al-Buwayti, as was quoted by al-Baghawi. He said: Whoever is (praying) behind an imam, when the imam has finished his salaam, he should say salaam to his right and his left. End quote. 

Shaykh Ibn ‘Uthaymeen (may Allaah have mercy on him) said in al-Sharh al-Mumti’ (4/267): 

The scholars said: It is makrooh to say the first and second tasleem with your imam, but if you say the first tasleem after his first tasleem and the second tasleem after his second tasleem, there is nothing wrong with that, but it is better not to say the tasleem until after he has said both tasleems. End quote. 

And Allaah knows best.

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
Points in the prayer at which du‘aa’ may be offered
The reason why Qur’aan is recited out loud in the nighttime prayers and silently in the daytime prayers
When should hands be raised during the prayer?
If someone loses his wudoo’ whilst praying and goes and does wudoo’, can he resume his prayer from where he left off or should he start all over again?
Woman speaking aloud in prayer in the presence of her mahrams

Recommended answers for you:
What is the ruling on offering congratulations on Friday?
Disturbed by Waswas (Whispers From the Shaytan) and Evil Thoughts
Limits of looking at one’s fiancée and the ruling on touching her and being alone with her. Is her permission a condition of being allowed to look at her?
Why should the wife obey her husband?
“When the wings of the night spread , keep your children in, for the devils come out at that time”