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
darimi:59 – Ibrāhīm b. al-Mundhir > ʿAbd al-ʿAzīz b. Abū Thābit al-Zuhrī > Ismāʿīl b. Ibrāhīm from my cousin Mūsá from his uncle Mūsá b. ʿUqbah > Kurayb > Ibn ʿAbbās

[Machine] The translation of the given phrase into English is as follows: "The Messenger of Allah ﷺ had a gap between his front teeth, when he spoke, it was seen as light shining forth from between his teeth."  

الدارمي:٥٩ – أَخْبَرَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي ثَابِتٍ الزُّهْرِيُّ حَدَّثَنِي إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ ابْنُ أَخِي مُوسَى عَنْ عَمِّهِ مُوسَى بْنِ عُقْبَةَ عَنْ كُرَيْبٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

«كَانَ رَسُولُ اللَّهِ ﷺ أَفْلَجَ الثَّنِيَّتَيْنِ إِذَا تَكَلَّمَ رُئِيَ كَالنُّورِ يَخْرُجُ مِنْ بَيْنِ ثَنَايَاهُ»  

See similar narrations below:

Collected by Ṭabarānī
tabarani:12181 – Muḥammad b. ʿAbdullāh al-Ḥaḍramī > Ibrāhīm b. al-Mundhir al-Ḥizāmī > ʿAbd al-ʿAzīz b. Abū Thābit > Ismāʿīl b. Ibrāhīm b. ʿUqbah from his uncle Mūsá b. ʿUqbah > Kurayb > Ibn ʿAbbās

[Machine] The Messenger of Allah ﷺ had a visible split between his two front teeth, and when he spoke, it would shine like light between them.  

الطبراني:١٢١٨١ – حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللهِ الْحَضْرَمِيُّ ثنا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ الْحِزَامِيُّ ثنا عَبْدُ الْعَزِيزِ بْنُ أَبِي ثَابِتٍ حَدَّثَنِي إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ بْنِ عُقْبَةَ عَنْ عَمِّهِ مُوسَى بْنِ عُقْبَةَ عَنْ كُرَيْبٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

كَانَ رَسُولُ اللهِ ﷺ «أَفْلَجَ الثَّنِيَّتَيْنِ إِذَا تَكَلَّمَ يُرَى كَالنُّورِ بَيْنَ ثَنِيَّتَيْهِ»