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.
darimi:189Hārūn b. Muʿāwiyah > Ḥafṣ > Ashʿath > Ibn Sīrīn

[Machine] I do not mind being asked about what I know or do not know, because when I am asked about what I know, I say what I know, and when I am asked about what I do not know, I say I do not know.  

الدارمي:١٨٩أَخْبَرَنَا هَارُونُ بْنُ مُعَاوِيَةَ عَنْ حَفْصٍ عَنْ أَشْعَثَ عَنِ ابْنِ سِيرِينَ قَالَ

مَا أُبَالِي سُئِلْتُ عَمَّا أَعْلَمُ أَوْ مَا لَا أَعْلَمُ لِأَنِّي إِذَا سُئِلْتُ عَمَّا أَعْلَمُ قُلْتُ مَا أَعْلَمُ وَإِذَا سُئِلْتُ عَمَّا لَا أَعْلَمُ قُلْتُ لَا أَعْلَمُ