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:19248Muḥammad b. Yaḥyá > Rawḥ > Ḥammād > Maṭar > al-Ḥasan And ʿAṭāʾ

[Machine] That Hasan and Ataa said: It is slaughtered until the last days of the Tashriq.  

البيهقي:١٩٢٤٨قَالَ وَحَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى أنبأ رَوْحٌ ثنا حَمَّادٌ عَنْ مَطَرٍ

أَنَّ الْحَسَنَ وَعَطَاءً قَالَا يُضَحَّى إِلَى آخِرِ أَيَّامِ التَّشْرِيقِ