أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ عَبْدِ الْمَجِيدِ ، حَدَّثَنَا مَالِكٌ ، عَنْ أَبِي النَّضْرِ مَوْلَى عُمَرَ بْنِ عُبَيْدِ اللَّهِ بْنِ مَعْمَرٍ، أَنَّ بُسْرَ بْنَ سَعِيدٍ أَخْبَرَهُ، أَنَّ زَيْدَ بْنَ خَالِدٍ الْجُهَنِيَّ أَرْسَلَهُ إِلَى أَبِي جُهَيْمٍ يَسْأَلُهُ : مَاذَا سَمِعَ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، يَقُولُ فِي الْمَارِّ بَيْنَ يَدَيْ الْمُصَلِّي.
فَقَالَ أَبُو جُهَيْمٍ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ :" لَوْ يَعْلَمُ الْمَارُّ بَيْنَ يَدَيْ الْمُصَلِّي مَاذَا عَلَيْهِ فِي ذَلِكَ، لَكَانَ أَنْ يَقِفَ أَرْبَعِينَ خَيْرًا لَهُ مِنْ أَنْ يَمُرَّ بَيْنَ يَدَيْهِ ".
قَالَ أَبُو النَّضْرِ : لَا أَدْرِي : أَرْبَعِينَ يَوْمًا، أَوْ شَهْرًا، أَوْ سَنَةً

Ubayd Allah ibn Abdul Majeed told us, Malik told us, on the authority of Abu al-Nadr, the client of Omar ibn Ubayd Allah ibn Muammar, that Busr ibn Sa`id He told him that Zayd bin Khalid al-Juhani sent him to Abu Juhaym, asking him: What did he hear from the Messenger of God, may God bless him and grant him peace? He said in Passing between the hands of the praying person.
Abu Juhaym said: The Messenger of God, may God bless him and grant him peace, said: “If the one who is passing in front of the praying person knew what he must do in that, he would have stopped.” Forty is better for him than for it to pass before him.”
Abu Al-Nadr said: I do not know: forty days, months, or years.