2:20
يَكَادُ ٱلْبَرْقُ يَخْطَفُ أَبْصَٰرَهُمْ ۖ كُلَّمَآ أَضَآءَ لَهُم مَّشَوْا۟ فِيهِ وَإِذَآ أَظْلَمَ عَلَيْهِمْ قَامُوا۟ ۚ وَلَوْ شَآءَ ٱللَّهُ لَذَهَبَ بِسَمْعِهِمْ وَأَبْصَٰرِهِمْ ۚ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىْءٍۢ قَدِيرٌۭ
The lightning almost snatches away their sight. Every time it lights [the way] for them, they walk therein; but when darkness comes over them, they stand [still]. And if Allah had willed, He could have taken away their hearing and their sight. Indeed, Allah is over all things competent.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Another Parable of the Hypocrites
This is another parable which Allah gave about the hypocrites who sometimes know the truth and doubt it at other times. When they suffer from doubt, confusion and disbelief, their hearts are,
كَصَيِّبٍ
(Like a Sayyib), meaning, "The rain", as Ibn Mas`ud, Ibn `Abbas, and several other Companions have confirmed as well as Abu Al-`Aliyah, Mujahid, Sa`id bin Jubayr, `Ata', Al-Hasan Al-Basri, Qatadah, `Atiyah Al-`Awfi, `Ata' Al-Khurasani, As-Suddi and Ar-Rabi` bin Anas. Ad-Dahhak said "It is the clouds." However, the most accepted opinion is that it means the rain that comes down during,
ظُلُمَـتِ
(darkness), meaning, here, the doubts, disbelief and hypocrisy.