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.
abudawud:1702Musaddad > Yaḥyá > Shuʿbah Bimaʿnāh > ʿArrifhā Ḥawl > Thalāth Mirār > Falā Adrī

He said : Make it known for a year. He said this three times. He said: I do not know whether he said “for a year” or “for three years”.  

أبو داود:١٧٠٢حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَحْيَى عَنْ شُعْبَةَ بِمَعْنَاهُ قَالَ

عَرِّفْهَا حَوْلاً وَقَالَ ثَلاَثَ مِرَارٍ قَالَ فَلاَ أَدْرِي قَالَ لَهُ ذَلِكَ فِي سَنَةٍ أَوْ فِي ثَلاَثِ سِنِينَ