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bukhari:7155 – Muḥammad b. Khālid al-Dhuhlī > al-Anṣārī Muḥammad from my father > Thumāmah > Anas

Qais bin Saʿd was to the Prophet ﷺ like a chief police officer to an Amir (chief).  

البخاري:٧١٥٥ – حَدَّثَنَا مُحَمَّدُ بْنُ خَالِدٍ الذُّهْلِيُّ حَدَّثَنَا الأَنْصَارِيُّ مُحَمَّدٌ حَدَّثَنَا أَبِي عَنْ ثُمَامَةَ عَنْ أَنَسٍ

أَنَّ قَيْسَ بْنَ سَعْدٍ كَانَ يَكُونُ بَيْنَ يَدَىِ النَّبِيِّ ﷺ بِمَنْزِلَةِ صَاحِبِ الشُّرَطِ مِنَ الأَمِيرِ  

See similar narrations below:

Collected by Tirmidhī, Ibn Ḥibbān, Ṭabarānī, Suyūṭī
tirmidhi:3850 – Muḥammad b. Marzūq al-Baṣrī > Muḥammad b. ʿAbdullāh al-Anṣārī from my father > Thumāmah > Anas

"Qais bin Sa'd used to be, to the Prophet ﷺ, in the position of the head of police for a ruler." (One of the narrators) Al-Ansari said: "That is: Due to his affairs that he takes charge of."  

الترمذي:٣٨٥٠ – حَدَّثَنَا مُحَمَّدُ بْنُ مَرْزُوقٍ الْبَصْرِيُّ قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ قَالَ حَدَّثَنِي أَبِي عَنْ ثُمَامَةَ عَنْ أَنَسٍ قَالَ

كَانَ قَيْسُ بْنُ سَعْدٍ مِنَ النَّبِيِّ ﷺ بِمَنْزِلَةِ صَاحِبِ الشُّرَطِ مِنَ الأَمِيرِ قَالَ الأَنْصَارِيُّ يَعْنِي مِمَّا يَلِي مِنْ أُمُورِهِ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ حَدِيثِ الأَنْصَارِيِّ حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ نَحْوَهُ وَلَمْ يَذْكُرْ فِيهِ قَوْلَ الأَنْصَارِيِّ

ذِكْرُ احْتِرَازِ الْمُصْطَفَى ﷺ مِنَ الْمُشْرِكِينَ فِي مَجْلِسِهِ إِذَا دَخَلُوا عَلَيْهِ

ibnhibban:4508 – Muḥammad b. Yaʿqūb al-Khaṭīb > Bishr b. Ādam b. b. Azhar al-Sammān > Muḥammad b. ʿAbdullāh al-Anṣārī from my father > Thumāmah > Anas b. Mālik

"Qais bin Sa'd used to be, to the Prophet ﷺ, in the position of the head of police for a ruler." (One of the narrators) Al-Ansari said: "That is: Due to his affairs that he takes charge of." (Using translation from Tirmidhī 3850)   

ابن حبّان:٤٥٠٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ يَعْقُوبَ الْخَطِيبُ حَدَّثَنَا بِشْرُ بْنُ آدَمَ بْنِ بِنْتِ أَزْهَرَ السَّمَّانُ حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الْأَنْصَارِيُّ حَدَّثَنِي أَبِي عَنْ ثُمَامَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

«كَانَ قَيْسُ بْنُ سَعْدٍ مِنَ النَّبِيِّ ﷺ مَنْزِلَةَ صَاحِبِ الشَّرَطِ مِنَ الْأَمِيرِ»  

tabarani:16030 – ʿAbdullāh b. Aḥmad b. Ḥanbal > Abū al-Rabīʿ al-Zahrānī > Muḥammad b. ʿAbdullāh al-Anṣārī from my father > Thumāmah b. ʿAbdullāh b. Anas

[Machine] The position of Qais bin Saad with the Messenger of Allah ﷺ was similar to the position of a police officer with a prince.  

الطبراني:١٦٠٣٠ – حَدَّثَنَا عَبْدُ اللهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ حَدَّثَنِي أَبُو الرَّبِيعِ الزَّهْرَانِيُّ ثَنَا مُحَمَّدُ بْنُ عَبْدِ اللهِ الْأَنْصَارِيُّ حَدَّثَنِي أَبِي عَنْ ثُمَامَةَ بْنِ عَبْدِ اللهِ بْنِ أَنَسٍ قَالَ

كَانَتْ مَنْزِلَةُ قَيْسِ بْنِ سَعْدٍ مِنْ رَسُولِ اللهِ ﷺ مَنْزِلَةَ صَاحِبِ الشُّرْطَةِ مِنَ الْأَمِيرِ  

suyuti:85-545b – Anas
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السيوطي:٨٥-٥٤٥b –

"عَنْ أَنَسٍ قَالَ: كَانَ قَيْسُ بْنُ سَعْدٍ مِنَ النَبِيِّ ﷺ بِمَنْزِلَةِ صَاحِبِ الشُّرْطَةِ مِنَ الأمِيرِ".  

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