What is the most rakaats you can pray and is it better to pray this many? Also, is your tahajjud still regarded if you pray it an hour before fajr starts? Are you supposed to read the tahajjud dua as soon as you wake up for tahajjud or can you read it after you pray?
There is no limit for nafal prayers you can pray as much as you want based on your convenience. As for those nafal prayers, which are specifically, mentioned in the prophetic traditions such as tahajjud, ishraq etc. their rakats are predetermined. But still he can pray what ever is convenient for you. As for the tahajjud prayer, it’s time stops when the time of fajar starts. Therefore it is not necessary to pray one hour before hand and all those prayers related to waking up should be recited when you wake up for tahajjud.
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