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.
muslim:684bYaḥyá b. Yaḥyá And Saʿīd b. Manṣūr Waqutaybah b. Saʿīd > Abū ʿAwānah > Qatādah > Anas

This hadith has been narrated by Qatada, but here no mention has been made of" There is no explation for it except this."  

مسلم:٦٨٤bوَحَدَّثَنَاهُ يَحْيَى بْنُ يَحْيَى وَسَعِيدُ بْنُ مَنْصُورٍ وَقُتَيْبَةُ بْنُ سَعِيدٍ جَمِيعًا عَنْ أَبِي عَوَانَةَ عَنْ قَتَادَةَ عَنْ أَنَسٍ

عَنِ النَّبِيِّ ﷺ وَلَمْ يَذْكُرْ لاَ كَفَّارَةَ لَهَا إِلاَّ ذَلِكَ