According to the majority of the ulema, the Ahadith that mentions
‘Qiyaamul-lail’ refers to the ‘Taraweeh Salaat’. Hence, most of the ulema
are of the opinion that, after having performed one’s taraweeh salaat, one
may perform any other nafl salaat, if one wishes to. However, these salah
should be performed individually, rather than in jamaat. [FIQHI-MAQAALAAT :
2]
However, some scholars permit the performing of Tahajjud Salaat in Jamaat.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai