Sharh al-Arba'in al-Nawawiyya by Ibn Uthaymeen (شرح الأربعين النووية) — Page 182

Line-by-line translation · المعاني

تَيَقَّنَ أَنَّهُ طَافَ سِتًّا فَيُكْمِلُ إِذَا لَمْ يَطُلِ الْفَصْلُ.

If he is certain he has completed six circuits, he should finish the seventh provided not much time has passed.

مِثَالٌ آخَرُ: رَجُلٌ انْتَهَى مِنَ الصَّلَاةِ وَسَلَّمَ ثُمَّ شَكَّ هَلْ صَلَّى ثَلَاثًا أَمْ أَرْبَعًا، فَمَاذَا يَصْنَعُ؟

Another example: A man finishes his prayer and says the final salutation, then doubts whether he prayed three or four units. What should he do?

الْجَوَابُ: لَا يَلْتَفِتُ إِلَى هَذَا الشَّكِّ، فَالْأَصْلُ صِحَّةُ الصَّلَاةِ مَا لَمْ يَتَيَقَّنْ أَنَّهُ صَلَّى ثَلَاثًا فَيَأْتِي بِالرَّابِعَةِ إِذَا لَمْ يَطُلِ الْفَصْلُ وَيُسَلِّمُ وَيَسْجُدُ لِلسَّهْوِ وَيُسَلِّمُ.

The answer is that he should disregard this doubt. The default state is that his prayer is valid unless he is certain he only prayed three. In that case, he should perform the fourth unit if not much time has passed, then conclude with the salutation, perform the prostration of forgetfulness, and conclude again.

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Vocabulary · المفردات (19 verbs · 26 nouns)

• تَيَقَّنَ — to be certain
• طَافَ — to circumambulate
• أَكْمَلَ — to complete
• سِتَّة — six
• فَصْل — interval
• مِثَال — an example