Answer
(Fatwa: 566/5669=L)
Though, according to Ahnaaf the fatwa is that the time of Asr starts from mislain (when shade of an object becomes two fold except its original shade), but there is another qaol (opinion) that the time of Asr starts from one misl. Imam Abu Yusuf and Imam Muhammad also support this opinion; therefore due to the above compulsion it is allowable to offer Asr Salah with jama?at on first misl i.e. according to Hanbali Maslk.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband