Can we pray 4 rakah as a whole in tahajjud?
Answer
(Fatwa: 269/209/B=1433)
Yes, you can offer four rakah tahajjud salah with a single salam. But it is better to offer 2-2 rakah with single salam. If you find time offer eight rakah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband