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:20944Abū Zakariyyā b. Abū Isḥāq al-Muzakkī > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Baḥr b. Naṣr > Ibn Wahb > Yaʿqūb b. ʿAbd al-Raḥman Waʿiyāḍ b. ʿAbdullāh al-Fihrī > Mūsá b. ʿUqbah > Nāfiʿ

[Machine] That Ibn Umar used to say "Al-Maysir is gambling".  

البيهقي:٢٠٩٤٤أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ الْمُزَكِّي ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا بَحْرُ بْنُ نَصْرٍ ثنا ابْنُ وَهْبٍ أَخْبَرَنِي يَعْقُوبُ بْنُ عَبْدِ الرَّحْمَنِ وَعِيَاضُ بْنُ عَبْدِ اللهِ الْفِهْرِيُّ عَنْ مُوسَى بْنِ عُقْبَةَ عَنْ نَافِعٍ

أَنَّ ابْنَ عُمَرَ كَانَ يَقُولُ الْمَيْسِرُ الْقِمَارُ