The word(s) "strictly" appears 4 time(s) in 4 verse(s) in Quran in Mohsin Khan translation.

(1) Guard strictly (five obligatory) As-Salawat (the prayers) especially the middle Salat (i.e. the best prayer - 'Asr ) . And stand before Allah with obedience [and do not speak to others during the Salat (prayers)].

(2) O you who believe! Intoxicants (all kinds of alcoholic drinks), and gambling, and Al-Ansab , and Al-Azlam (arrows for seeking luck or decision) are an abomination of Shaitan's (Satan) handiwork. So avoid (strictly all) that (abomination) in order that you may be successful.

(3) On that Day mankind will follow strictly (the voice of) Allah's caller, no crookedness (that is without going to the right or left of that voice) will they show him (Allah's caller). And all voices will be humbled for the Most Gracious (Allah), and nothing shall you hear but the low voice of their footsteps.

(4) And those who strictly guard their (five compulsory congregational) Salawat (prayers) (at their fixed stated hours).