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.
ahmad:14662Ḥusayn b. Muḥammad > Sulaymān b. Qarm > Abū Yaḥyá al-Qattāt > Mujāhid > Jābir b. ʿAbdullāh

[Machine] The Messenger of Allah ﷺ said, "The key to Paradise is prayer, and the key to prayer is purification." Abdullah bin Ahmad said, "This is how it is recorded in the original narration: Hasan (good) and the correct version is Husayn (better)."  

أحمد:١٤٦٦٢حَدَّثَنَا حُسَيْنُ بْنُ مُحَمَّدٍ حَدَّثَنَا سُلَيْمَانُ بْنُ قَرْمٍ عَنْ أَبِي يَحْيَى الْقَتَّاتِ عَنْ مُجَاهِدٍ عَنْ جَابِرِ بْنِ عَبْدِ اللهِ قَالَ

قَالَ رَسُولُ اللهِ ﷺ مِفْتَاحُ الْجَنَّةِ الصَّلَاةُ وَمِفْتَاحُ الصَّلَاةِ الطُّهُورُ قَالَ عَبْدُ اللهِ بْنُ أَحْمَدَ هَكَذَا وَقَعَ فِي الْأَصْلِ حَسَنٌ وَالصَّوَابُ حُسَيْنٌ