Tahajjud (predawn/late night) salah is most virtuous and extremely important for those traveling the tareeq (path).
A mureed wrote: These days tahajjud salah prior to fajar is often missed.
Sayyidi wa sanadi Hazrat Mawlana Mohammad Taqi Usmani sahib db replied:
“Between the sunnah salah of Esha’ and witir offer four rak‘ah nafil with intention of tahajjud (every day).
Then if you wake up at predawn offer tahajjud salah again.”
“Be always steadfast with this practice (of offering nawafil at esha’). If by chance you are not able to wake up at the appointed tahajjud time this will, inshaAllah, compensate for it.”
(Please, note: Individuals with qaza salah should focus on completing the pending salah as soon as possible. For them it is best to offer qaza at these times (e.g. tahajjud, ishraq, awabeen, etc.) also).