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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:8723 – Abū Ṭāhir al-Faqīh > Abū Ḥāmid b. Bilāl > Muḥammad b. Ismāʿīl al-Aḥmasī > al-Muḥāribī > Sufyān > Ibn Jurayj > ʿAṭāʾ

[Machine] Whoever refrains from performing Hajj during months other than the designated Hajj months, it will be considered as a lesser pilgrimage (Umrah).  

البيهقي:٨٧٢٣ – وَأَخْبَرَنَا أَبُو طَاهِرٍ الْفَقِيهُ أنبأ أَبُو حَامِدِ بْنُ بِلَالٍ ثنا مُحَمَّدُ بْنُ إِسْمَاعِيلَ الْأَحْمَسِيُّ ثنا الْمُحَارِبِيُّ عَنْ سُفْيَانَ عَنِ ابْنِ جُرَيْجٍ عَنْ عَطَاءٍ قَالَ

مَنْ أَحْرَمَ بِالْحَجِّ فِي غَيْرِ أَشْهُرِ الْحَجِّ جَعَلَهَا عَمْرَةً