1؎: Whoever has the habit and nature of being ungrateful to people is also ungrateful for the favors of Allah, or it means that Allah does not accept the gratitude of those servants who do not thank people for their kindnesses.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues: Expressing gratitude for people’s good conduct and kindness is evidence of a person’s good character. Whereas gratitude to Allah, the Mighty and Majestic, is a part of worship and servitude. The kindness that people show you is, in reality, done only by the disposition of Allah, the Mighty and Majestic; therefore, true gratitude is the exclusive right of the Lord, Exalted is He. However, by nature, expressing appreciation to people for their kindness is also necessarily legislated and a Sunnah.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 4811
´Abu Hurairah narrated that the Messenger of Allah said :` "Whoever is not grateful to the people, he is not grateful to Allah."
Shaykh Dr. Abdur Rahman Freywai
Explanation: 1: That is, whoever does not show gratitude to Allah’s servants for any blessing received through them—even though Allah has commanded this—then how can it be expected that such a person will be grateful to Allah? Or its meaning is that Allah, the Exalted, will not accept a servant’s gratitude for the favor which Allah has bestowed upon him until the servant expresses gratitude for the favors of people.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 1954