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.
nasai-kubra:1279Aḥmad b. Ḥafṣ b. ʿAbdullāh from my father > Ibrāhīm b. Ṭahmān > al-Ḥajjāj b. al-Ḥajjāj > Abū al-Zubayr > Abū ʿAlqamah > Abū Hurayrah

"The Messenger of Allah ﷺ said: 'Whoever says the tasbih one hundred times following the morning prayer, and the tahlil one hundred times, he will be forgiven his sins even if they are like the foam of the sea.'" (Using translation from Nasāʾī 1354)  

الكبرى للنسائي:١٢٧٩أَخْبَرَنِي أَحْمَدُ بْنُ حَفْصِ بْنِ عَبْدِ اللهِ قَالَ حَدَّثَنِي أَبِي حَدَّثَنِي إِبْرَاهِيمُ بْنُ طَهْمَانَ عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ عَنْ أَبِي الزُّبَيْرِ عَنْ أَبِي عَلْقَمَةَ عَنْ أَبِي هُرَيْرَةَ

أَنَّهُ قَالَ قَالَ رَسُولُ اللهِ ﷺ «مَنْ سَبَّحَ فِي دُبُرِ صَلَاةِ الْغَدَاةِ مِائَةَ تَسْبِيحَةٍ وَهَلَّلَ مِائَةَ تَهْلِيلَةٍ غُفِرَ لَهُ ذُنُوبَهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ»  


See similar narrations below:

Collected by Nasāʾī, Nasāʾī's Kubrá, Suyūṭī
nasai:1354Aḥmad b. Ḥafṣ b. ʿAbdullāh al-Naysābūrī from my father > Ibrāhīm / Ibn Ṭahmān > al-Ḥajjāj b. al-Ḥajjāj > Abū al-Zubayr > Abū ʿAlqamah > Abū Hurayrah

"The Messenger of Allah ﷺ said: 'Whoever says the tasbih one hundred times following the morning prayer, and the tahlil one hundred times, he will be forgiven his sins even if they are like the foam of the sea.'"  

النسائي:١٣٥٤أَخْبَرَنَا أَحْمَدُ بْنُ حَفْصِ بْنِ عَبْدِ اللَّهِ النَّيْسَابُورِيُّ قَالَ حَدَّثَنِي أَبِي قَالَ حَدَّثَنِي إِبْرَاهِيمُ يَعْنِي ابْنَ طَهْمَانَ عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ عَنْ أَبِي الزُّبَيْرِ عَنْ أَبِي عَلْقَمَةَ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ سَبَّحَ فِي دُبُرِ صَلاَةِ الْغَدَاةِ مِائَةَ تَسْبِيحَةٍ وَهَلَّلَ مِائَةَ تَهْلِيلَةٍ غُفِرَتْ لَهُ ذُنُوبُهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ  

nasai-kubra:9892Aḥmad b. Ḥafṣ b. ʿAbdullāh from my father > Ibrāhīm > al-Ḥajjāj b. al-Ḥajjāj > Abū al-Zubayr > Abū ʿAlqamah > Abū Hurayrah

"The Messenger of Allah ﷺ said: 'Whoever says the tasbih one hundred times following the morning prayer, and the tahlil one hundred times, he will be forgiven his sins even if they are like the foam of the sea.'" (Using translation from Nasāʾī 1354)  

الكبرى للنسائي:٩٨٩٢أَخْبَرَنِي أَحْمَدُ بْنُ حَفْصِ بْنِ عَبْدِ اللهِ قَالَ حَدَّثَنِي أَبِي قَالَ حَدَّثَنِي إِبْرَاهِيمُ عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ عَنْ أَبِي الزُّبَيْرِ عَنْ أَبِي عَلْقَمَةَ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «مَنْ سَبَّحَ فِي دُبُرَ صَلَاةِ الْغَدَاةِ مِائَةَ تَسْبِيحَةٍ وَهَلَّلَ مِائَةَ تَهْلِيلَةٍ غُفِرَ لَهُ ذُنُوبُهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ»  

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السيوطي:٢١٧٠٣a

"مَنْ سَبَّحَ في دُبُرِ صَلاةِ الْغَدَاةِ مائَةَ تَسْبِيحَة، وَهَلَّلَ مائَةَ تَهْلِيلَة غُفِرَ لَهُ ذنوبُهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحر".  

[ن] النسائي عن أَبي هريرة