Asalamualaikum Q-Is it permissible or bidat when you meet a muslim or write a letter to say or write the word salaams for short instead of Assalamualaikum?
Greeting with Assalamu Alaikum is sunnah, it is bad to be habitual of greeting with any other form of greeting. Saying only ?salam? is not bid?ah (innovation) rather it is against sunnah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband