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:11157Abū Ḥāzim al-Ḥāfiẓ > Abū al-Faḍl b. Khamīrawayh > Aḥmad b. Najdah > Saʿīd b. Manṣūr > Ismāʿīl b. ʿAyyāsh > Ibn Jurayj > Muḥammad b. ʿAbbād b. Jaʿfar

[Machine] Ibn Umar sent your hand and do not touch his head; because only what the measure takes is mine  

البيهقي:١١١٥٧أَخْبَرَنَا أَبُو حَازِمٍ الْحَافِظُ أنبأ أَبُو الْفَضْلِ بْنُ خَمِيرَوَيْهِ ثنا أَحْمَدُ بْنُ نَجْدَةَ ثنا سَعِيدُ بْنُ مَنْصُورٍ ثنا إِسْمَاعِيلُ بْنُ عَيَّاشٍ عَنِ ابْنِ جُرَيْجٍ عَنْ مُحَمَّدِ بْنِ عَبَّادِ بْنِ جَعْفَرٍ أَنَّ ابْنَ عُمَرَ ابْتَاعَ شَيْئًا فَحَثَا لَهُ فِي الْمِكْيَالِ فَقَالَ

ابْنُ عُمَرَ أَرْسِلْ يَدَكَ وَلَا تُمْسِكْ عَلَى رَأْسِهِ؛ فَإِنَّمَا لِي مَا أَخَذَ الْمِكْيَالُ