الكافي 2/1/48/12

12. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from Isma’il ibn Mehran from Sayf ibn ‘Amirah from abu Basir who has said the following: “I asked Abu ‘Abdillah عليه السلام ‘Is there a limit for the expression of thankfulness, upon which a servant is considered a thankful one?’ “The Imam said, ‘Yes, there is a limit.’ I then asked, ‘What is that limit?’ The Imam said, ‘One must thank Allah for every favor that He has done, such as family and properties. If on the property one has received there is a certain right it must be paid off as is mentioned in the words of Allah, the Most Majestic, the Most Holy, quoting certain people, “Glory belongs to Him who has made it subservient to us when we were not able to do so ourselves.” (43:13) He, the Most High, has also said quoting certain people, “Lord, grant us a blessed landing from the Ark; You are the One who provides the safest landing” (23:29) . Allah has also said, “(Muhammad), say, ‘Lord, make me enter through a path that will lead to the Truth and come out of an exit that will take me to the Truth. Grant me supportive authority.””” (17:80)