Speak truth before a tyrannical ruler .

This hadith speaks about the importance of speaking truth even in the face of a tyrannical ruler. It suggests that speaking truth is an act of Jihad or struggle and it is one of the greatest forms of struggle. The Prophet Muhammad (s.a.w.) taught us that we should not be afraid to speak up for what we believe in and stand up for justice even if it means going against those in power who are unjust or oppressive. We should always strive to do what is right and just regardless of who may be against us or how powerful they may be. This hadith teaches us that standing up for justice and speaking out against injustice can have a great impact on society and can help create positive change even when faced with difficult odds.