Finding faults with others whilst not taking care of oneself is a sign of defective iman.
A Realistic Faith
Al-Ḥasan Al-Baṣrī – Allah have mercy on him – said:
Faith (īmān) is not by embellishment or wishful thinking, but it is what settles in the heart and is verified through your works. Whoever says good but does not do good will have his words compared to his deeds by Allah. Whoever says good and does good will have his words raised by his deeds. This is because Allah ‘azza wa jalla said: To Him ascends the good word, and the righteous deed raises it. [Sūrah Fāṭir: 10]
Ibn Battah in Al-Ibānah Al-Kubrā Vol. 3 p120, and Al-Khaṭīb Al-Baghdādī in Iqtiḍā’ Al-‘Ilm Al-‘Amal no. 56.
Also read
Related sayings.
It is reported that Al-Ḥasan Al-Baṣrī – Allāh have mercy on him – said when asked ‘what is īmān (faith)?’: It is perseverance (al-ṣabr) from the things that are forbidden by Allāh the Mighty and Majestic and acceptance. He was asked, “What is perseverance and acceptance?” He replied, “al-ṣabr is to persevere in holding back […]
Commenting on 2:201 of the Quran which states: Our Lord! Give us the good of this world and the good of the hereafter… Al-Hasan Al-Baṣrī – Allah have mercy on him – said: The good of this world is knowledge and worship, and the good of the hereafter is Paradise. Al-Ājurrī in Akhlāq Al-‘Ulamā’ no. […]