Hasnain has just finished a five-game stint for the Sydney Thunder, but will have to undergo testing at the ICC-accredited biomechanics laboratory in Lahore.
His contribution to the Thunder had been widely praised, mostly for his sheer pace that threatened breaking the 150km/h mark, but his action will be scrutinised in coming days.
3-0 from your first over! Hello and welcome to the BBL, Mohammed Hasnain.
— Fox Cricket (@FoxCricket) January 2, 2022
He was supposed to take a test in Australia on January 19, but it was decided he could be tested in his home country given his role with the Thunder had ceased.
The test will come at a critical interval for Hasnain, who has one eye on his role with Quetta Gladiators in the Pakistan Super League (PSL) - due to begin in less than a fortnight. He would be able to continue playing if he is found to have a legal action, but an illegal action would see him suspended from bowling in international cricket until the action is corrected.
Under clause 11.5 of the ICC's regulations, the Pakistan Cricket Board can permit him to bowl in domestic cricket. However, in the past, players with suspect actions have not usually been allowed to bowl in the PSL.
In five games for the Sydney Thunder, Hasnain managed an economy rate of just 6, taking seven wickets at an average of 15.71.