Hadith 3436

وَعَنِ ابْنِ عَبَّاسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَنْ نَذَرَ نَذْرًا لم يسمه فَكَفَّارَتُهُ كَفَّارَةُ يَمِينٍ. وَمَنْ نَذَرَ نَذْرًا لَا يُطِيقُهُ فَكَفَّارَتُهُ كَفَّارَةُ يَمِينٍ. وَمَنْ نَذَرَ نَذْرًا أَطَاقَهُ فَلْيَفِ بِهِ» . رَوَاهُ أَبُو دَاوُدَ وَابْنُ مَاجَه وَوَقفه بَعضهم على ابْن عَبَّاس
Ibn ‘Abbas reported God’s Messenger as saying, “If anyone takes a vow but does not name it, its atonement is the same as that for an oath; if anyone takes a vow to do an act of disobedience, its atonement is the same as that for an oath; if anyone takes a vow he is unable to fulfil, its atonement is the same as that for an oath; but if anyone takes a vow he is able to fulfil, he must do so.” Abu Dawud and Ibn Majah transmitted it, but some traced it no farther back than Ibn ‘Abbas.
Hadith Reference Mishkat al-Masabih / The Book of Oaths and Vows / Hadith: 3436
Hadith Grading الألبانی: لم تتمّ دراسته  |  زبیر علی زئی: إسناده حسن
Hadith Takhrij ´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده حسن، رواه أبو داود (3322) و ابن ماجه (2128)»