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.
tirmidhi:3166Saʿīd b. Yaḥyá b. Saʿīd al-Umawī from my father > Muḥammad b. Isḥāq > Abū al-Zinād > ʿAbd al-Raḥman al-Aʿraj > Abū Hurayrah

that the Messenger of Allah ﷺ said: "Ibrahim, peace be upon him, did not lie about anything at all - except for three: 'Verily I am sick (37:89)' while he was not sick. And his saying about Sarah: 'She is my sister' and his saying: 'Nay, this one, the biggest of them did it (21:63).'"  

Abū ʿĪsá said that this Ḥadīth is Ḥasan-Ṣaḥīḥ.
الترمذي:٣١٦٦حَدَّثَنَا سَعِيدُ بْنُ يَحْيَى بْنِ سَعِيدٍ الأُمَوِيُّ حَدَّثَنِي أَبِي حَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ عَنْ أَبِي الزِّنَادِ عَنْ عَبْدِ الرَّحْمَنِ الأَعْرَجِ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ لَمْ يَكْذِبْ إِبْرَاهِيمُ عَلَيْهِ السَّلاَمُ فِي شَيْءٍ قَطُّ إِلاَّ فِي ثَلاَثٍ قَوْلُهُ (إنِّي سَقِيمٌ ) وَلَمْ يَكُنْ سَقِيمًا وَقَوْلُهُ لِسَارَةَ أُخْتِي وَقَوْلُهُ ( بلْ فَعَلَهُ كَبِيرُهُمْ هَذَا )  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ