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.
bayhaqi:7671Qays b. Saʿd Fī Dhalik Faʾakhbaranāh Abū Ṭāhir al-Faqīh > Abū ʿUthmān ʿAmrū b. ʿAbdullāh al-Baṣrī > Abū Aḥmad Muḥammad b. ʿAbd al-Wahhāb > Yaʿlá b. ʿUbayd > Sufyān > Salamah b. Kuhayl > al-Qāsim b. Mukhaymirah > Abū ʿAmmār > Saʾalnā Qays b. Saʿd > Ṣadaqah al-Fiṭr

[Machine] "The Messenger of Allah ﷺ commanded us to give it (the zakat) before the zakat was revealed. But when the zakat was revealed, he did not command us nor forbid us, and we continued to practice it. The scholar said, 'This does not indicate the nullification of its obligation, because the revelation of one obligation does not necessitate the nullification of another.' And the scholars have unanimously agreed on the obligation of Zakat al-Fitr, although they have differed in its naming as an obligation. Therefore, it is not permissible to abandon it. And with Allah is the guidance."  

البيهقي:٧٦٧١وَأَمَّا الَّذِي رُوِيَ عَنْ قَيْسِ بْنِ سَعْدٍ فِي ذَلِكَ فَأَخْبَرَنَاهُ أَبُو طَاهِرٍ الْفَقِيهُ أنبأ أَبُو عُثْمَانَ عَمْرُو بْنُ عَبْدِ اللهِ الْبَصْرِيُّ ثنا أَبُو أَحْمَدَ مُحَمَّدُ بْنُ عَبْدِ الْوَهَّابِ أنبأ يَعْلَى بْنُ عُبَيْدٍ ثنا سُفْيَانُ عَنْ سَلَمَةَ بْنِ كُهَيْلٍ عَنِ الْقَاسِمِ بْنِ مُخَيْمِرَةَ عَنْ أَبِي عَمَّارٍ قَالَ سَأَلْنَا قَيْسَ بْنَ سَعْدٍ عَنْ صَدَقَةِ الْفِطْرِ فَقَالَ

أَمَرَنَا بِهَا رَسُولُ اللهِ ﷺ قَبْلَ أَنْ تَنْزِلَ الزَّكَاةُ فَلَمَّا نَزَلَتِ الزَّكَاةُ لَمْ يَأْمُرْنَا وَلَمْ يَنْهَنَا وَنَحْنُ نَفْعَلُهُ قَالَ الشَّيْخُ وَهَذَا لَا يَدُلُّ عَلَى سُقُوطِ فَرْضِهَا؛ لِأَنَّ نُزُولَ فَرْضٍ لَا يُوجِبُ سُقُوطَ آخَرَ وَقَدْ أَجْمَعَ أَهْلُ الْعِلْمِ عَلَى وُجُوبِ زَكَاةِ الْفِطْرِ وَإِنِ اخْتَلَفُوا فِي تَسْمِيَتِهَا فَرْضًا فَلَا يَجُوزُ تَرْكُهَا وَبِاللهِ التَّوْفِيقُ