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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tabarani:2531 – Muḥammad b. ʿAbdullāh al-Ḥaḍramī > ʿUbādah b. Ziyād > Sharīk > ʿAbdullāh b. Abū Zuhayr a freed slave of al-Ḥasan b. ʿAlī > Raʾayt al-Ḥasan b. ʿAlī Yakhḍib Bi-al-Wasmah > al-Ḥaḍramī Hakadhā

[Machine] The worship of the servant of Hasan, and he is only the servant of Husayn.  

الطبراني:٢٥٣١ – حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللهِ الْحَضْرَمِيُّ ثنا عُبَادَةُ بْنُ زِيَادٍ ثنا شَرِيكٌ عَنْ عَبْدِ اللهِ بْنِ أَبِي زُهَيْرٍ مَوْلَى الْحَسَنِ بْنِ عَلِيٍّ ؓ قَالَ «§رَأَيْتُ الْحَسَنَ بْنَ عَلِيٍّ ؓ يَخْضِبُ بِالْوَسْمَةِ» قَالَ الْحَضْرَمِيُّ هَكَذَا قَالَ

عُبَادَةُ مَوْلَى الْحَسَنِ وَإِنَّمَا هُوَ مَوْلَى الْحُسَيْنِ