Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai:2145 – ʿUbaydullāh b. Saʿīd > ʿAbd al-Raḥman > Abū Bakr b. ʿAyyāsh > ʿĀṣim > Zir > ʿAbdullāh > Tasaḥḥarūā

"Take Sahur." 'Ubaidullah said: "I do not know how he said it."  

النسائي:٢١٤٥ – أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ عَنْ أَبِي بَكْرِ بْنِ عَيَّاشٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنْ عَبْدِ اللَّهِ قَالَ تَسَحَّرُوا قَالَ

عُبَيْدُ اللَّهِ لاَ أَدْرِي كَيْفَ لَفْظُهُ  

See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:2466 – ʿUbaydullāh b. Saʿīd > ʿAbd al-Raḥman > Abū Bakr b. ʿAyyāsh > ʿĀṣim > Zir > ʿAbdullāh > Tasaḥḥarūā

"Take Sahur." 'Ubaidullah said: "I do not know how he said it." (Using translation from Nasāʾī 2145)  

الكبرى للنسائي:٢٤٦٦ – أَخْبَرَنَا عُبَيْدُ اللهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ عَنْ أَبِي بَكْرِ بْنِ عَيَّاشٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنْ عَبْدِ اللهِ قَالَ «§تَسَحَّرُوا» قَالَ

عُبَيْدُ اللهِ لَا أَدْرِي كَيْفَ لَفْظُهُ