Hadith on Hypocrisy: This is the prayer of the hypocrites

Anas reported: The Messenger of Allah, peace and blessings be upon him, said, “This is the prayer of the hypocrites: He sits watching the sun decline until it is between the two horns of Satan, then he quickly pecks the ground four times while he only remembers Allah for a few moments.

Source: Ṣaḥīḥ Muslim 622

Grade: Sahih (authentic) according to Muslim

عَنْ أَنَسٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تِلْكَ صَلَاةُ الْمُنَافِقِ يَجْلِسُ يَرْقُبُ الشَّمْسَ حَتَّى إِذَا كَانَتْ بَيْنَ قَرْنَيْ الشَّيْطَانِ قَامَ فَنَقَرَهَا أَرْبَعًا لَا يَذْكُرُ اللَّهَ فِيهَا إِلَّا قَلِيلًا

622 صحيح مسلم كتاب المساجد ومواضع الصلاة باب استحباب التبكير بالعصر