The phrase taghayyur al-shams refers to a conspicuous change in the sun's usual brightness near the final period before sunset.
The recommended delay of Asr is limited to before that phase. Unnecessarily delaying it until the sun turns weak or yellow should not be treated as the same preferred practice.
A prayer's legal time may remain even after the recommended portion has passed; Asr ends at sunset, but its optimal window ends earlier.
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Prayer Times and Recommended Times
The phrase taghayyur al-shams refers to a conspicuous change in the sun's usual brightness near the final period before sunset.
The recommended delay of Asr is limited to before that phase. Unnecessarily delaying it until the sun turns weak or yellow should not be treated as the same preferred practice.
A prayer's legal time may remain even after the recommended portion has passed; Asr ends at sunset, but its optimal window ends earlier.