Is it obligatory to make an effort to determine the qiblah for every prayer?
Machine translationRead the Arabic original
The questioner : A man made an effort to determine the qiblah for the Zuhr prayer, then the 'Asr prayer time arrived. Is he required to make the effort again?
The Shaykh : Yes.
The questioner : The second opinion is that it is not required.
The Shaykh : As long as
The questioner : We have no money.
The Shaykh : Unless he becomes uncertain; otherwise, he builds upon his first effort. Now, if it becomes clear to him that his first effort was wrong, O Imdad Allah? Does he repeat it?
The questioner : Because he performed what he knew.
The Shaykh : But after it becomes clear to him what direction he should face a second time.
The Shaykh : Yes.
The questioner : The second opinion is that it is not required.
The Shaykh : As long as
The questioner : We have no money.
The Shaykh : Unless he becomes uncertain; otherwise, he builds upon his first effort. Now, if it becomes clear to him that his first effort was wrong, O Imdad Allah? Does he repeat it?
The questioner : Because he performed what he knew.
The Shaykh : But after it becomes clear to him what direction he should face a second time.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 930رجل اجتهد في القبلة لصلاة ثم ...📔 الشرح الممتع على زاد المستقنع - ابن عثيمين - مشروع كبار العلماء — youtube.com
The Arabic text is a machine transcription of the audio recording.