After performing fardh salah, when should we complete the azkar (like tasbih Fatimah etc), after fardh rakahs or sunnah rakahs?
بسم الله الرحمن الرحيم
(Fatwa: 563/563/SD=07/1437)
It is preferred to read wird and wazifahs immediately after those fardh salahs that follow no sunnah and nafl salah. And it is preferred to read them after offering sunnah and nafl salah after those fardh salah which are followed by sunnah and nafl salah. However it may also be read immediately after the salah.
(فتاوى محموديه 2/ 126) لا بأس بقراء ة الأوراد بين الفريضة والسنة فالأولى تاخير الأوراد عن السنة . (طحطاوي 170)
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband