Sunan Ibn Majah, Volume 4, Book 24, Hadith 2830 (DarusSalam) ⓘ
It was narrated from Qabisah bin Hulb that his father said: “I asked the Messenger of Allah about the food of the Christians and he said: ‘Do not have any doubt about food, (thereby) following the way of the Christians in that.’”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَعَلِيُّ بْنُ مُحَمَّدٍ، قَالاَ حَدَّثَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنْ سِمَاكِ بْنِ حَرْبٍ، عَنْ قَبِيصَةَ بْنِ هُلْبٍ، عَنْ أَبِيهِ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنْ طَعَامِ النَّصَارَى فَقَالَ " لاَ يَخْتَلِجَنَّ فِي صَدْرِكَ طَعَامٌ ضَارَعْتَ فِيهِ نَصْرَانِيَّةً " .
also referenced under: Hadith 2830 (Reference) & Book 24, Hadith 2937 (In-Book)