[Advice] Short advice regarding the sacred months / Shaykh Muhammad ibn Salih Al-'Uthaymeen رحمه الله‎‎

Indeed you are bidding today welcome to the three (consecutive) sacred months (Dhu'l-Qi'dah, Dhu'l-Hijjah, and Al-Muharram), so do not wrong yourselves therein. Respect the limits set by Allāh, carry out the obligations ordained by Allāh, and stay away from His prohibitions. Fulfil the rights with regards to what is between you and your Lord, and with regards to what is between you and His 'Ibād (servants, slaves, worshippers).

Footnote by translator: {Verily, the number of months with Allah is twelve months (in a year), so was it ordained by Allah on the Day when He created the heavens and the earth; of them four are Sacred, (i.e. the 1st (Al-Muharram), the 7th (Rajab), the 11th (Dhu'l-Qi'dah) and the 12th (Dhu'l-Hijjah) months of the Islamic calendar). That is the right religion, so wrong not yourselves therein} [Sūrah At-Tawbah 9:36]

Shaykh Muhammad ibn Salih Al-'Uthaymeen, may Allah have mercy upon him 

Translated by Salafi-Dawah.com.
Source: Ad-Diyā' Al-Lāmi' 9/704​.

 قال الشيخ محمد ابن صالح العثيمين رحمه الله وإنكم اليوم تستقبلون الأشهر الحرم الثلاثة فلا تظلموا فيهن أنفسكم التزموا حدود الله تعالى أقيموا فرائض الله واجتنبوا محارمه أدوا الحقوق فيما بينكم وبين ربكم وفيما بينكم وبين عباده الضياء اللامع ٧٠٤/٩