TYPES OF GOOD DEEDS H 139 "There are forty categories of good deeds. Of the highest is the free loan of a she-camel yielding milk. Whichever of these deeds are practiced in hope of receiving its reward and relying on the fulfillment of its promise will lead its practitioner to Paradise." R 139 Bukhari with a chain up to Abdullah son of Amr the son of Al 'As who related that the Messenger of Allah, praise and peace be upon him, said this. (No scholar succeeded to list these forty categories which obligate Paradise until the late Shaykh, Muhaddith Abdullah ben Sadek, was blessed with the knowledge to list them from sound Prophetic Quotations, may Allah have mercy upon him).
138- الثاني والعشرون: عن أبي محمد عبدِ اللهِ بنِ عمرو بن العاصِ رَضي الله عنهما ، قَالَ: قَالَ رَسُول الله صلى الله عليه وآله وسلم : "أرْبَعُونَ خَصْلَةً : أعْلاَهَا مَنيحَةُ العَنْزِ ، مَا مِنْ عَامِلٍ يَعْمَلُ بِخَصْلَة مِنْهَا ؛ رَجَاءَ ثَوَابِهَا وتَصْدِيقَ مَوْعُودِهَا ، إلاَّ أدْخَلَهُ اللهُ بِهَا الجَنَّةَ" رواه البخاري . " المَنيحَةُ" : أنْ يُعْطِيَهُ إِيَّاهَا لِيَأكُلَ لَبَنَهَا ثُمَّ يَرُدَّهَا إِلَيْهِ . (لم يجمع أحد الأربعين خصلة المروية في كتاب حتى جاء الحافظ المحدث عبد الله بن الصديق الغماري الحسني فجمعها)