Is it correct to end a letter with the phrase “wa’l-salaam”?

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Check below answers in case you are looking for other related questions:
Ruling on shaking hands with the opposite sex
Ruling on greeting with a wave of the hand

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Related Answers:
Shaking hands with a non-mahram woman
Responding to Greeting of Parrot
Giving salaam is Sunnah when joining a gathering and when leaving it
Ruling on shaking hands with the opposite sex
Ruling on greeting with a wave of the hand

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