The Iron Knife
Scholars have said that seeing an iron knife might indicate the dreamer reuniting with a woman they had previously separated from. The interpretation also states that the pen symbolizes command, prohibition, and authority, while the inkwell might refer to a female servant or benefit from a woman.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.