´Abu Burdah bin Abi Musa narrated from his father that the Messenger of Allah said:` "Three will receive their reward twice: A slave who fulfills the rights of Allah and the rights of his owners, then he will be given his reward twice. And a man who has a beautiful slave girl, so he teaches her good manners, then he frees her, then he married her seeking the Face of Allah by that; then he will be given his reward twice. And a man who believed in an earlier Book, then another Book came to him and he believed in it; then he will be given his reward twice."
Hadith Referenceسنن ترمذي / كتاب النكاح عن رسول الله صلى الله عليه وسلم / 1116
´Ibn 'Umar narrated that the Messenger of Allah (s.a.w) said:` 'Indeed the disbeliever's tongue will be stretched a Farsakh or two Farsakh, such that the people will walk upon it."
Hadith Referenceسنن ترمذي / كتاب صفة جهنم عن رسول الله صلى الله عليه وسلم / 2580
Hadith Gradingالألبانی:ضعيف، المشكاة (5676) ، الضعيفة (1986) // ضعيف الجامع الصغير (1518) //