“At the end of Ramadaan Allaah has prescribed that His slaves should recite takbeer. Allaah says:

(He wants that you) must complete the same number (of days), and that you must magnify Allâh [i.e. to say Takbîr (Allâhu Akbar; Allâh is the Most Great] for having guided you so that you may be grateful to Him.

[Surah Al-Baqarah: 185]