Hawzah News Agency –  Imam Sadiq peace be upon him says:

إذا أنعَمَ اللَّهُ على‏ عَبدِهِ بنِعمَةٍ فظَهَرَت علَيهِ سُمِّيَ حَبيبَ اللَّهِ مُحَدِّثاً بنِعمَةِ اللَّهِ، وإذا أنعَمَ اللَّهُ على‏ عَبدٍ بِنِعمَةٍ فلَم تَظهَرْ علَيهِ سُمِّيَ بَغيضَ اللَّهِ مُكَذِّباً بنِعمَةِ اللَّهِ.

'When Allah blesses His servant with bounties and it is manifest about him, he is called the beloved of Allah and a proclaimer of Allah's bounties, and when Allah blesses a servant with bounties and he does not show it, he is called the denier of Allah's bounties.'

Source: al-Kafi, v. 6, p. 438, no. 2